我厂生产的射孔枪枪体上需用M8×12.5、M10×12.5mm的内六角螺钉10万件。其内六方为6×6mm,是非标准件,需自制。原先用六方杆手工冲制,不能满足生产需要。为此,我们对冲制工艺进行改进,改用图示模具冲制。由于内六方在冲制前钻孔深度不一致,用刚性底模无法达到冲制深度要求(深4.5~(+0.30)mm。因此,我们在底模下面增加了7片碟簧,解决了问 I plant the perforation gun gun body required M8 × 12.5, M10 × 12.5mm socket head cap screws 100,000. The six parties for the 6 × 6mm, non-standard parts, to be made. The original hand-punched six-bar, can not meet the production needs. To this end, we make improvements to the punching process, using the punches instead. Due to the inconsistent drilling depth of inner hexagon before punching, the depth of punch can not reach the depth of punching (4.5 ~ (+0.30) mm deep). Therefore, we added seven disc springs under the bottom mold to solve the problem